Bidirectional vertical laser range finder

Abstract

The utility model relates to a bidirectional vertical laser range finder, which comprises an L-shaped shell, circuit boards and laser generators are arranged in inner cavities of the transverse part and the longitudinal part of the L-shaped shell, and the circuit boards and the laser generators are electrically connected with a battery arranged in the L-shaped shell; a laser emitting port and a laser receiving port are formed in the end parts of the transverse part and the longitudinal part of the L-shaped shell, a display is arranged on the outer wall of each of the transverse part and the longitudinal part of the L-shaped shell, an on-off button is arranged on each display, and a wiring end part of each on-off button penetrates through the L-shaped shell to be connected with the circuit board and the laser generator. The two-way vertical laser range finder emits laser to irradiate an object, laser reflected or scattered by the object is received by the range finder, reflection time is recorded after receiving, and the distance is calculated. The two-way vertical laser range finder is convenient to use, convenient to operate in a handheld mode, high in safety, time-saving, labor-saving and high in measurement efficiency and precision, and a traditional mode of measuring by using a steel tape is replaced.

Description

Technical Field

[0001] The utility model relates to the field of measuring equipment, and particularly relates to a bidirectional vertical laser rangefinder. Background Art

[0002] The coal mining environment is complex and changeable, and there are more dangerous factors in the mining area of the coal mining operation. The overall safety of the direct roof of the coal mine is the key content of the maintenance of the fully mechanized coal mining face. Generally speaking, the overall safety of the direct roof of the coal mine will be directly affected by the main roof. Controlling the coal mining face is equivalent to controlling the movement law of the main roof, which will make the mine pressure monitoring data more accurate. The roof weighting monitoring is an important means to monitor and prevent the support effect of the roof and prevent the occurrence of rock separation and roof fall accidents. It is very crucial to ensure the safe production of the mine and to understand and master the methods and means of roof mine pressure monitoring.

[0003] Roof separation indicators have been installed in the 2203 fully mechanized top coal caving face and the 2205 intake and return airway driving face of a certain mining area to facilitate the observation of the deformation of the roadway roof caused by pressure. Especially, the use of the fully mechanized top coal caving mining method in the coal mining face enables the rapid and efficient production of the hard roof working face. At the same time, it will cause strong mine pressure manifestations in the fully mechanized top coal caving face, which will lead to large roof hanging areas in the goaf and difficult caving. Once the large roof hanging area in the goaf collapses, it will cause large-scale roof weighting in the working face, which may lead to mine pressure hazards such as hydraulic supports being crushed and roof collapse, resulting in irreparable property losses. Therefore, it is necessary to strengthen the mine pressure monitoring of the fully mechanized top coal caving face, master the law of mine pressure manifestation in the working face, and provide a theoretical basis for realizing safe and efficient production.

[0004] At present, the mine pressure observation in a certain mining area roadway is measured by operators using a steel tape according to the "cross" layout method, and it is observed once a day. Since there are belt and other transportation equipment in the roadway belt, when personnel conduct roof observation, they need to climb over the belt, which poses a risk of belt injury. Moreover, the tape measurement is time-consuming and laborious, with a large labor intensity, and the error of observing the steel tape data with the naked eye is relatively large, resulting in low fully mechanized coal mining efficiency. Summary of the Utility Model

[0005] The utility model provides a bidirectional vertical laser rangefinder, aiming to solve the problems of time-consuming, laborious, and relatively large potential safety hazards when using a steel tape to measure the mine pressure in the mining area roadway according to the "cross" layout method.

[0006] To achieve its purpose, the utility model adopts the following technical solutions:

[0007] A two-way vertical laser rangefinder, comprising an L-shaped housing. Circuit boards and laser generators are provided in the inner cavities of the horizontal and vertical parts of the L-shaped housing. The circuit boards and laser generators are electrically connected to a battery provided in the L-shaped housing. Laser emission ports and laser reception ports are provided at the ends of the horizontal and vertical parts of the L-shaped housing. Displays are provided on the outer walls of the horizontal and vertical parts of the L-shaped housing. An on-off button is provided on the display. The wiring end of the on-off button passes through the L-shaped housing and is connected to the circuit board and the laser generator.

[0008] Further, there are several batteries.

[0009] Further, the battery is provided at the bottom of the vertical part of the L-shaped housing.

[0010] Further, the L-shaped housing is made of stainless steel.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] The two-way vertical laser rangefinder provided by the present utility model uses a laser to irradiate an object. The laser reflected or scattered by the object is received by the rangefinder. After receiving, the reflection time is recorded, and the distance can be calculated. It is convenient to use, easy to operate handheld, replaces the traditional method of measuring with a steel tape measure, does not need to climb over the belt, has high safety, saves time and effort, has high measurement efficiency and accuracy. When observing and analyzing the roof separation meter regularly and at fixed points, more accurate observation data will provide a more comprehensive grasp of the roadway deformation amount, more accurate monitoring of the roof weighting, and a high theoretical basis for the face mining. Description of the Drawings

[0013] Figure 1 It is a schematic structural diagram of the two-way vertical laser rangefinder of the present utility model;

[0014] Figure 2 It is a schematic use diagram of the two-way vertical laser rangefinder of the present utility model;

[0015] In the figure: 1-L-shaped housing; 2-Circuit board and laser generator; 3-Battery; 4-Laser emission port; 5-Laser reception port; 6-Display; 7-Central measuring point on the roof; 8-Right roadway side measuring point; 9-Left roadway side measuring point. Detailed Embodiment

[0016] The present utility model will be further described below with reference to the drawings:

[0017] As Figure 1-2As shown in the figure, the utility model relates to a two-way vertical laser rangefinder, which comprises an L-shaped housing 1 made of stainless steel. Circuit boards and laser generators 2 are provided in the inner cavities of the horizontal and vertical parts of the L-shaped housing 1. The circuit boards and laser generators 2 are electrically connected to a battery 3 arranged at the bottom of the vertical part of the L-shaped housing 1. There are two batteries 3, which are fixed in the L-shaped housing 1 in series. Laser emission ports 4 and laser reception ports 5 are provided at the ends of the horizontal and vertical parts of the L-shaped housing 1. Displays 6 are provided on the outer walls of the horizontal and vertical parts of the L-shaped housing 1. An on-off button is provided on the display 6, and the wiring end of the on-off button passes through the L-shaped housing 1 and is connected to the circuit board and the laser generator 2.

[0018] When measuring the distance to the right roadway sidewall, first press the on-off button of the display 6 on the vertical part of the two-way vertical laser rangefinder of the present application. The rangefinder emits a laser beam and aims it at the center measurement point on the roof. The laser irradiates an object, and the reflected or scattered laser from the object is received by the rangefinder. After reception, the reflection time is recorded, and the distance is calculated. Then press the on-off button of the display 6 on the horizontal part of the two-way vertical laser rangefinder. The rangefinder emits a laser beam and aims it at the measurement point on the right roadway sidewall. The laser irradiates an object, and the reflected or scattered laser from the object is received by the rangefinder. After reception, the reflection time is recorded, and the distance is calculated.

[0019] Then rotate the two-way vertical laser rangefinder horizontally by 180° to measure the distance to the left roadway sidewall. Similarly, first press the on-off button of the display 6 on the vertical part of the two-way vertical laser rangefinder of the present application. The rangefinder emits a laser beam and aims it at the center measurement point on the roof. The laser irradiates an object, and the reflected or scattered laser from the object is received by the rangefinder. After reception, the reflection time is recorded, and the distance is calculated. Then press the on-off button of the display 6 on the horizontal part of the two-way vertical laser rangefinder. The rangefinder emits a laser beam and aims it at the measurement point on the left roadway sidewall. The laser irradiates an object, and the reflected or scattered laser from the object is received by the rangefinder. After reception, the reflection time is recorded, and the distance is calculated. This replaces the traditional method of using a steel tape for measurement, eliminating the need to climb over the belt, ensuring high safety, saving time and effort, and having high measurement efficiency and accuracy.

Claims

1. A two-way vertical laser rangefinder, characterized in that: It includes an L-shaped housing (1). Circuit boards and a laser generator (2) are provided in the inner cavities of the horizontal and vertical parts of the L-shaped housing (1). The circuit boards and the laser generator (2) are electrically connected to a battery (3) provided in the L-shaped housing (1). Laser emission ports (4) and laser reception ports (5) are provided at the ends of the horizontal and vertical parts of the L-shaped housing (1). Displays (6) are provided on the outer walls of the horizontal and vertical parts of the L-shaped housing (1). An opening and closing button is provided on the display (6), and the wiring end of the opening and closing button passes through the L-shaped housing (1) and is connected to the circuit boards and the laser generator (2).

2. The two-way vertical laser rangefinder according to claim 1, characterized in that: The battery (3) is plural in number.

3. The two-way vertical laser rangefinder according to claim 2, characterized in that: The battery (3) is provided at the bottom of the vertical part of the L-shaped housing (1).

4. A two-way vertical laser rangefinder according to any one of claims 1-3, characterized in that: The L-shaped housing (1) is of stainless steel structure.

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